I had unprotected sex for 2 or 3 hours last night and when I woke up I noticed a rash on my pubic area, lower stomach, and thigh. Also my pubic area is really sore. The rash is red and has a few whiteheads. Im sure the soreness is from the sex, but am really worried about the rash. If anyone has any insight, concerns, or answers please let me know.